Green Bean Casserole Recipe

Green Bean Casserole Recipe, Dinner recipe, Food recipes, Christmas food recipes, Christmas dinner recipes, Thanksgiving recipe, Easy recipes, Baking recipe, Vegetarian food recipes, Dinner ideas


Green bean casserole is more than just a holiday side dish—it’s a cozy hug on a plate and a cherished tradition in my family. 


This creamy, flavorful dish, topped with crispy French-fried onions, has been a favorite at our holiday table for years, always bringing everyone back for seconds.


If you love this, be sure to check out more of our dinner recipes here—you’ll find plenty of dishes to keep your family coming back for more!


Made with green beans and Campbell’s soup, it’s not just delicious but also a piece of history! Originally created in 1955 by Dorcas Reilly from the Campbell’s Test Kitchen, this classic recipe has been winning hearts ever since. 


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Whether it’s Thanksgiving, Christmas, or a regular weeknight dinner, this timeless casserole is always the star of the show. But if you're looking for another crowd-pleaser, don't miss the Butternut Squash with Quinoa and Cranberries recipe—it's a fantastic option to add to your meal rotation.


Let me show you how to make it—you’re going to love it!



Green Bean Casserole Ingredients


Here’s what you’ll need to make this green bean casserole recipe:


  • Fresh green beans – any fresh green beans will work. If needed, frozen green beans are a great substitute.
  • Cremini mushrooms – These create the creamy homemade mushroom sauce, though white button mushrooms can also be used.
  • Garlic and thyme – Provide a fresh, savory depth to the sauce.
  • Tamari or soy sauce – Adds a boost of umami flavor to the mushrooms.
  • Milk (any type!) and Parmesan cheese – Make the mushroom sauce creamy, with Parmesan lending a rich, nutty flavor.
  • All-purpose flour – Thickens the mushroom sauce and helps crisp up the onions in the oven.
  • Panko breadcrumbs – Combine with flour to create a perfectly crispy onion texture.
  • Dijon mustard – Adds a tangy kick to the sauce.
  • Yellow onions – Thinly sliced for the crispy onion topping.
  • Extra-virgin olive oil – Adds richness and helps the onions crisp as they bake.
  • Salt and pepper – Enhance all the flavors and make them shine!



How to Make Green Bean Casserole


This green bean casserole recipe is made up of three main parts: the crispy onions, the green beans, and the mushroom sauce.


You’ll find the full recipe with exact measurements at the end of this post, but here’s a quick overview of the process:


Step 1: Prep the Crispy Onions


Slice the onions thinly and toss them with olive oil, flour, salt, and panko breadcrumbs. Spread them out evenly on two large baking sheets and roast by tossing every 10 minutes, until they’re golden and crispy. If you’re short on time, you can use store-bought French fried onions instead.


Step 2: Blanch the Green Beans


Bring a large pot of salted water to a boil. Add the green beans and cook for 4 minutes, stirring occasionally, until they’re crisp-tender and a vibrant green. Drain and immediately transfer the beans to a bowl of ice water to stop them from cooking further and before changing it’s beautiful green color. Once cooled, pat them dry on a kitchen towel.


Step 3: Make the Mushroom Sauce


Sauté mushrooms in a skillet until they’re soft. Add tamari, garlic, and thyme to build flavor. Sprinkle in flour, then pour in milk and Dijon mustard. Simmer the mixture for about 20 minutes until it thickens. Stir in Parmesan cheese and a pinch of black pepper to finish.


Step 4: Assemble and Bake


Grease a baking dish with butter and spread a thin layer of mushroom sauce on the bottom. Add the blanched green beans, then cover them with the remaining sauce. Top everything with the crispy onions. Bake in a preheated oven, covered, for 10 minutes. Remove the cover and bake for an additional 10 minutes until golden and bubbly.


Green Bean Casserole Recipe, Dinner recipe, Food recipes, Christmas food recipes, Christmas dinner recipes, Thanksgiving recipe, Easy recipes, Baking recipe, Vegetarian food recipes, Dinner ideas


Best Green Bean Casserole Recipe Tips


Look for haricots verts: While any fresh green beans will work for this recipe, thin haricots verts deliver the best results. Their slender shape allows them to blend seamlessly with the sauce and onion topping, plus they have a satisfying, snappy texture!


Keep an Eye on the Onions: As the onions bake, toss them every 10 minutes and rotate the baking sheets. This ensures even cooking and prevents one pan from crisping up faster than the other. Be extra watchful near the end of the cooking time—they can go from perfectly golden to burned in no time.


Shortcut with Store-Bought Onions: To save time, swap the crispy baked onions for 1 1/2 cups of store-bought French fried onions.


Dry Your Green Beans Thoroughly: After blanching, make sure the green beans are completely dry. Excess water can lead to a watery casserole, which no one wants!


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Storage


This green bean casserole recipe is best on the day it’s made, but leftovers keep well for up to 2 days. Store them in an airtight container in the fridge, and reheat in the microwave or a 350°F oven.



Green Bean Casserole Recipe FAQ


Are frozen or canned green beans better for green bean casserole?


This recipe calls for fresh green beans, but frozen ones are the next best option. Avoid canned green beans—they’re too soft and tend to fall apart.


Do you need to blanch frozen green beans?

Not at all! If you’re using frozen green beans, skip blanching. Just thaw them, drain any excess water, and proceed with step 2.


Can you top green bean casserole with fried onions?

Of course! Traditional green bean casseroles often feature French fried onions. While this recipe uses crispy panko breadcrumbs, you can easily swap them for fried onions or even potato chips. If you choose fried onions, add them during the last 5 minutes of baking to prevent burning.


What pairs well with green bean casserole?

It’s a Thanksgiving favorite for a reason—roasted turkey, mashed potatoes, and cornbread dressing are classic pairings. But don’t save it just for the holidays! It’s also great with a simple roasted chicken for a cozy family dinner.


Can you make green bean casserole ahead of time?

Yes! Assemble the casserole a day or two in advance, cover it, and store it in the fridge unbaked. Wait to add the panko topping until just before baking to keep it crisp.


What’s the best way to reheat green bean casserole?

For a single portion, microwave it for 30 seconds. For larger leftovers, heat the whole dish in a 350°F oven for 15–20 minutes. Cover it with foil if the topping is browning too much. Let the casserole sit at room temperature for about 30 minutes before reheating to avoid cracking the dish.


How long does green bean casserole last?

Stored covered in the fridge, it’ll stay fresh for 3–4 days. Got lots of leftovers? Use them to make mini turkey pot pies for a creative post-Thanksgiving meal.


Can you freeze green bean casserole?

Yes, it freezes well! Assemble the casserole (minus the panko), wrap it in plastic wrap followed by foil, and freeze for up to three months. When ready to bake, let it thaw overnight in the fridge and add the panko topping just before baking.


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